Pith Number

pith:PYQQH5GH

pith:2013:PYQQH5GHAEK3QCPR3TSHO7GPEU

not attested not anchored not stored refs pending

Gravitational Pressure and the Accelerating Universe

J. F. da Rocha-Neto, K. H. C. Castello-Branco

arxiv:1311.1590 v3 · 2013-11-07 · gr-qc · astro-ph.CO · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PYQQH5GHAEK3QCPR3TSHO7GPEU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:13:55.515193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e2103f4c70115b809f1dce4777ccf2527e6be5050d4aa0c7396bb5f89655af3

Aliases

arxiv: 1311.1590 · arxiv_version: 1311.1590v3 · doi: 10.48550/arxiv.1311.1590 · pith_short_12: PYQQH5GHAEK3 · pith_short_16: PYQQH5GHAEK3QCPR · pith_short_8: PYQQH5GH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/PYQQH5GHAEK3QCPR3TSHO7GPEU \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7e2103f4c70115b809f1dce4777ccf2527e6be5050d4aa0c7396bb5f89655af3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e5345ea723c18257b018483d931f3a4433b09650996ef45fd8856730bb626f3",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-11-07T07:43:55Z",
    "title_canon_sha256": "da41ccaff8ba0757bb0af703a482b91e303073d61a3bf86ef032ae907d8a1cc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1590",
    "kind": "arxiv",
    "version": 3
  }
}